CHAPTER – 10: THE HUMAN EYE AND THE COLOURFUL WORLD
VIGYAN
CHAPTER – 10: THE HUMAN EYE AND THE COLOURFUL WORLD
CHAPTER – 10: THE HUMAN EYE AND THE COLOURFUL WORLD VOLUME – 1 Section-A: Multiple Choice Questions Question 1 to 12 are multiple choice questions. Only one of the choices is correct. Select and write the correct choice as well as the answer to these questions. A person can clearly see objects only when they are between 50 cm and 200 cm from his eye. What kind of lenses will he need to see objects at infinity clearly?
A. Convex lens of suitable focal length
B. Concave lens of suitable focal length
C. Bifocal lens
D. Cylindrical lens
ANS- B. Concave lens of suitable focal length If the focal length of the eye lens increases, the eye will be unable to see:
A. Distant objects
B. Nearby objects
C. Both near and distant objects
D. Objects at infinity
ANS- B. Nearby objects A ray of white light enters a glass prism. Which of the following is true?
A. Red light bends the most
B. Violet light bends the l…